Improvement in steam-generators



'UNITED STATES PATENT GPPIGE.

PHILIP HOELZEL, or New ORLEANS, LoUIsInNA.

IM PROVEMENT IVN STEAM-GENERATO'RS.

Specification forming part of Letters Patent No. 59,020. dated October 23, 1866.

To all whom fit may concern:

Be it known that I, PHILIP HOELZEL, ot' the city of New Orleans, in the State of Louisiana, have invented a certain new and useful Improvement in Purifying and Heating the Feed-Water of Steam-Boilers, and economizing fuel thereby; and I do hereby declare that the following isa full, clear, and exact description of the construction and operation of the same, reference being had to the accompanying drawings, and to the letters and marks thereon.

Myimprovement is more specially intended for use on board of vessels plying on the Mississippi and other western rivers, where the l water is apt to be muddy, but, as is evident,

is applicable to boilers used for marine or stationary engines, and in any locality or under any circumstances where the water is impure, or where it is desirable to free it from noxious or objectionable materials.

The drawings forming part of this specication represent my improvement applied to a return-flue horizontal boiler. It will readily be seen that it may be attached to other kinds or forms of boilers, vertical as well as horizontal.

Figure l oi' these drawings is a side view of the boiler with my improvement as a part thereof, Fig. 2 being a front view, the doors of the re-box and the front plates of the receptacle below the fire-box being absent,'and the plates of the water space at the side being open. Fig. 3 is another side view of the boiler and my improvement, a portion ofthe side shell having been removed to show the interior; and Fig. 4 is a top view, certain parts of the interior being indicated by dotted lines.

In each of these figures the same marks and letters are used to indicate like parts.

In order to give protection to the wood-work of the vessel immediately under the boiler, and to make available the heat in that locality, I attach to the lower part of the boiler a receptacle or chamber, a, open at its rear end, into which the water from the feed-pump passes through the pipe b. rIhis chamber has a diaphragm or division-plate, c, extending from the rear end plate, d, to which it is attached toward lthe front end, leaving an open space between its front end and thefront plate, e, so that the water fed into this chamber will circulate from the rear, where it is fed in, to

the front, and thence around the diaphragm to the Iear, from whence it can be taken and forced into the pipe f, which is the inlet-pipe leading to the upper portion of the heating and purifying means. At suitable points in undergo some purification and receive some heat, and, intercepting the heat, it will pro` teet the wood-work below. l

From the receptacle a the water is taken and fed in through the pipe f into the cylinder g', and then through pipe h to cylinder c', from i to j, from j to lc, and so on through the series of pipes and cylinders until it reaches the cylinder Z. This track of the feed water, it will be noticed, is from the one side to the other alternately, and in the direction opposite to that of the products of combustion, which, passing from the iire-box m, take the direction indicated by the arrows to the uptake a at the rear of the boiler, and thence through the iiues o of the boilers to the smoke-stack. Under this arrangement the water becomes purer the nearer it approaches the feeding-point to the boiler, and the products of combustion are impeded and 'an opportunity afforded for depositing the cinders and ashes, which may easily be removed from the spaces about the cylinders'.

In one end of each of the cylinders g and the others in the feed-water track are placed man-holes p and blow-0E pipes and cocks q, so

ble to have such communication interrupted.

The cylinder u has both of its ends open, so that the water readily passes from the waterspaces t and t into the cylinder u, and from thence through the vertical pipes o into the boilers w and w, the Water reaching the boil` ers in a heated and pure condition. Thus the fuel is eeonomized and the boiler-cylinders kept in a clean and sound condition, and not so liable to accidents as when the supply-Wa ter to the boilers is impure or charged with noxious materials.

What I claim as my invention, and desire to secure by Letters Patent, is

1. The receptacle a, when constructed and arranged substantially as and for the purposes herein recited.

2. Combining with or connect-ing,` to a steamboler the series of cylinders for 'heating and purifying the feed-Water, said. cylinders having blow-off pipes and the alternating connectin g-pipes7 arranged substantially as herein set forth.

This specification signed this 27 th. day of July7 1866.

PH. HOELZEL. Witnesses:

Tnos. T. EVERETT T. SMITH. 

